20959100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{6761}}^1$

素因数の和:6806

約数の個数: 36

約数和(自身を含む): 46955328

約数和(自身を除く): 25996228

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 6761, 13522, 27044, 33805, 67610, 135220, 169025, 209591, 338050, 419182, 676100, 838364, 1047955, 2095910, 4191820, 5239775, 10479550, 20959100]

約数ペア:

[(1, 20959100), (2, 10479550), (4, 5239775), (5, 4191820), (10, 2095910), (20, 1047955), (25, 838364), (31, 676100), (50, 419182), (62, 338050), (100, 209591), (124, 169025), (155, 135220), (310, 67610), (620, 33805), (775, 27044), (1550, 13522), (3100, 6761)]